Tallvine Capital, a first‑time manager spun out of I Squared Capital, has closed $1.5 billion for its debut mid‑market infrastructure fund launched in 2024. The capital raise follows a successful spin‑out by four former I Squared colleagues who now steer the new vehicle.

The fund targets mid‑market infrastructure assets across the United States, aiming to capitalize on a sector that has seen steady demand amid rising infrastructure spending. Tallvine’s team brings a deep bench of experience from I Squared, positioning the fund to compete with larger, established players.

Investors see the deal as a signal that boutique managers can still attract sizable commitments in a crowded market. The $1.5 billion figure places Tallvine among the top mid‑market fund launches this year, underscoring confidence in the infrastructure theme.

Tallvine’s success may prompt other niche managers to pursue similar launches, potentially reshaping the competitive landscape for infrastructure capital.